Recently, I accompanied a student to finish Optiver 2026 Online Assessment, which contains four modules: Quant...

This is a record of a student who successfully took the TikTok Machine Learning Engineer (MLE) o...

I just finished a round of VOs with NVIDIA's Software Engineer, and the experience can be summarized as "...

Recently, I accompanied my classmates to finish ZipRecruiter's 2026 New Grad OA, which can be said to be "moderately easy but very...

你是不是也遇到过这样的情况？SQL 会写，但一到面试就讲不清楚逻辑；项目做得多，但业务 impact 表达不出…

Just last week, I took a student through a Hudson River Trading Online Assessment, a set of four...

I just took a CS Master's student to complete the latest round of the Google Online Assessment Test, two questions with a time limit of...

In today's interview, I want to talk about a ByteDance 2026 Summer SDE Intern interview that I just recently took a student through...

I just accompanied an MBA student through two rounds of interviews with Spotify Data Scientist, and the experience was really good - not only were the questions...

今天上午，我刚带一位学员完成了 MathWorks 最新的 OA。令人惊讶的是，两道编程题全程 只花了 15 …